operation and maintenance of low lift and high lift pumping machineries under alkusha water supply scheme- 1 operation &guardingof 2 nos. 7.5 hp centrifugal pump motor sets, 2 nos. 15 hp centrifugal pumps, valves, controlling devices, l.t. distribution panel, starters, pressure filter, blowers, chemical dosing pumps ,blower, backwash pump, voltage stabilizer, vacuum pump, electrical gadgets including switching the lighting arrangement in/out side the pump house by engaging total 9 nos skilled and semi-skilled labours.operation of pumping machinery shall be doneas and when required as per direction of eic. 2 periodical supervision charge for electrical installation/mechanical installationby licensed electrician / electrical supervisor with valid workmanship permit and engaging skilled mechanic and helper ( for pumps, pr. filter,blower, chemical dosing pump etc.) including incidental charges as per direction. 3 day to day maintenance for upkeepment of all electrical & mechanical installation by engaging licensed electrician / machanic as and when required bysupplying all necessary material including cost of supply of chlorine test kitrequired to execute maintenance as well as guarding work and gardening work.